271.Although he hasn't any formal qualifications,Betas_____to do well for himself.
A.managed B.succeeded C.arranged D.convinced
[答案]a.managed.
[注释]manage to do sth.(=succeed in doing sth.)设法做成某事：1)He managed to escape to South America.(他设法逃到了南美。)2)We managed to get what we wanted,anyhow.(我们反正设法得到了需要的东西。)3)Do you suppose you can manage to get me a passport?(你能设法给我弄到一份护照吗？)
本题译文：虽然他没有正式的资力，但他收入很多。Do well for oneself吃香，收入多，改善自己的社会地位。
272.The family is a cooperative enterprise for which it is difficult to_____rules,because each family needs to work out its own ways to deal with its own problems.
A.set up B.put down C.keep up D.lay down
答案]D.lay down.
[注释]lay down制定。
273.After a short holiday,he_____himself once more to his studies.
A.applied B.converted C.engaged D.exerted
[答案]A.applied.
[注释]apply oneself to“致力于”。Apply one's mind to(专心于)。Apply to sb.for aid(向某人求援)。Apply a theory to practice(把理论应用于实践)。
274.She felt_____of having asked such a silly question when the audience couldn't help laughing.
A.guilty B.crazy C.miserable D.ashamed
[答案]D.ashamed.
[注释]be ashamed of因......感到羞耻，惭愧：1)He is ashamed of what he was done.2)She felt ashamed of having done so little.(=She felt ashamed that she had done so little.)3)John was ashamed to ask for help.(他不好意思向人求助。)4)Jim was ashamed to have troubled me with so many questions.
Be guilty of犯有......罪，过失：1)He was found guilty.2)I am not guilty of this crime.
275.The driver can adjust the heating in winter and the air conditioning in summer to suit his own_____.
A.leisure B.preference C.convenience D.selection
[答案]B.preference.
[注释]preference偏爱，更加喜欢：My preference is for beef rather than for lamb.(我更喜欢牛肉面不是羊肉。)
